Solved papers for JEE Main & Advanced JEE Main Paper (Held On 11 April 2015)

done JEE Main Paper (Held On 11 April 2015) Total Questions - 1

• question_answer1) Let 10 vertical poles standing at equal distances on a straight line, subtend the same angle of elevation \[\alpha \]at a point O on this line and all the poles are on the same side of O. If the height of the longest pole is 'h' and the distance of the foot of the smallest pole from 0 is 'a' ; then the distance between two consecutive poles, is: [JEE Main Online Paper (Held On 11 April 2015)]  
  A)
  \[\frac{h\sin \alpha +a\cos \alpha }{9\sin \alpha }\]
  done clear
  B)
  \[\frac{h\cos \alpha -a\sin \alpha }{9\cos \alpha }\]
  done clear
  C)
  \[\frac{h\cos \alpha -a\sin \alpha }{9\sin \alpha }\]
  done clear
  D)
  \[\frac{h\sin \alpha +a\cos \alpha }{9\cos \alpha }\]
  done clear
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